Changes made by Regulation (EEC) No 3630/81 amending Regulation (EEC) No 2745/81 fixing the yields of olives and olive oil…
EU Regulation No 3630/1981
Made to Regulation (EEC) No 2745/81 fixing the yields of olives and olive oil for the 1980/81 marketing year
From legislation.gov.uk's record of changes, the official one: see it there.